Daniel Nigro, Commissioner of the New York City Fire Department, and Thomas Fuller, San Francisco bureau chief for The New York Times, explains what we know so far about what caused the devastating fire in an Oakland warehouse, and what safety lessons New Yorkers can take away from the fire.

@BrianLehrer The Oakland fire shows that we need to build more affordable housing. The federal government must build public housing.

— janetgriffith (@janetgriffith) December 9, 2016

@brianlehrer Is it illegal to lock a door with an Exit sign during business hours?
Who do we report it to?

— Robert Hadow (@BestInFlightLDJ) December 9, 2016

@BrianLehrer as former resident of illegal artist housing and current FDNY employee, I feel that confidential inspection/consult is key.

— Wesley Marcarelli (@WesMarcarelli) December 9, 2016

This cannot be divorced from affordable housing crisis @BrianLehrer high rents drive people to the fringe. 11MM+ spend 50% of income on rent

— Zigis S. Switzer (@thezigis) December 9, 2016

@BrianLehrer if the fire dpt finds a bldg not in code, the city should require landlord to fix, rather than evict tenants! #ithappenedtome

— Bexa Dale (@reallyrebekah) December 9, 2016

@LivingColour's @vurnt22 just called in to offer a passionate invective asking what artists should do when priced out of affordable housing

— Brian Lehrer Show (@BrianLehrer) December 9, 2016